Heterodyne THz-wave receiver with a superconducting tunneling mixer driven by a high sweeping-speed photonics-based THz-wave local oscillator. - Kyoung-Hwan Oh; Naofumi Shimizu; Naoya Kukutsu; Yuichi Kado; Satoshi Kohjiro; Kenichi Kikuchi; Takahiro Yamada; Atsushi Wakatsuki (IEICE Electron. Express, 2009)